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4188889553 = 25116688803
BaseRepresentation
bin1111100110101101…
…0110000111010001
3101210221010122012112
43321223112013101
532034323431203
61531354235105
7205542654662
oct37153260721
911727118175
104188889553
11185a5787a2
1298aa25a95
13519ab8894
142ba483369
15197b376d8
hexf9ad61d1

4188889553 has 4 divisors (see below), whose sum is σ = 4205578608. Its totient is φ = 4172200500.

The previous prime is 4188889519. The next prime is 4188889571. The reversal of 4188889553 is 3559888814.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4188889553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4188889492 and 4188889501.

It is not an unprimeable number, because it can be changed into a prime (4188882553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8344151 + ... + 8344652.

It is an arithmetic number, because the mean of its divisors is an integer number (1051394652).

Almost surely, 24188889553 is an apocalyptic number.

It is an amenable number.

4188889553 is a deficient number, since it is larger than the sum of its proper divisors (16689055).

4188889553 is a wasteful number, since it uses less digits than its factorization.

4188889553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16689054.

The product of its digits is 11059200, while the sum is 59.

The square root of 4188889553 is about 64721.6312603445. The cubic root of 4188889553 is about 1612.0046981301.

The spelling of 4188889553 in words is "four billion, one hundred eighty-eight million, eight hundred eighty-nine thousand, five hundred fifty-three".

Divisors: 1 251 16688803 4188889553